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A low-bandgap five-hole seismic metastructure

A low-frequency, ultra-intelligent technology, applied in infrastructure engineering, construction, sheet pile walls, etc., can solve problems such as dangerous elastic-plastic deformation of buildings

Active Publication Date: 2022-07-15
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, buildings can undergo dangerous elastoplastic deformations under large earthquakes

Method used

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  • A low-bandgap five-hole seismic metastructure
  • A low-bandgap five-hole seismic metastructure
  • A low-bandgap five-hole seismic metastructure

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Embodiment Construction

[0032] The present invention will be described in detail below in conjunction with the accompanying drawings: The low frequency band gap five-hole seismic metastructure unit cell includes a first hollow steel pipe 1, a second hollow steel pipe 2, a third hollow steel pipe 3, a fourth hollow steel pipe 4, and a fifth hollow steel pipe 5. , rubber column 6, concrete layer 7.

[0033] First, install a rubber column 6 with a reserved hole, the size of which is 2 cm larger than the cross-sectional area of ​​the square steel pipe column. Taking the interface centroid of the rubber column as the center, a coordinate system is established at the section, and the position of the center of the reserved hole is located at (0, 0), (0.51m, 0.51m), (-0.51m, 0.51 of the coordinate system, respectively. m), (-0.51m, -0.51m), (0.51m, -0.51m) five points.

[0034] After setting the rubber column, insert the first hollow steel pipe 1 into the rubber column 6, the centroid of the steel pipe 1 co...

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Abstract

The invention discloses a low-band-gap five-hole seismic metastructure. The invention is based on the periodic structure designed by the phononic crystal theory. When the seismic surface wave strikes, the seismic surface wave within the band gap will not be able to pass through. designed structure. It is arranged around the building foundation and is not connected to the building to remotely shield the seismic surface wave to protect the building. The seismic meta-structure of the present invention is mainly composed of thin-walled steel pipes, rubber columns and concrete protective layers. The structure is simple. The seismic metastructure of the present invention is not directly connected with the building, and is arranged at the periphery of the building with a certain distance from the building. All-round and multi-angle protection of the building. The layout of the designed seismic metastructure is arranged in sections and in the circumferential direction of the building according to the site environment and geological conditions where the building is located, so as to fully and effectively protect the building. The materials of the present invention are steel, rubber and concrete. These materials are relatively common and readily available during building construction.

Description

technical field [0001] The invention relates to a five-hole seismic superstructure with a low frequency band gap, which is a new structure with good control and attenuation effects on seismic surface waves. Background technique [0002] Millions of earthquakes occur every year around the world, and earthquakes cause catastrophic damage to humans. It will not only cause direct economic losses, but even cause the collapse of buildings and cause casualties. The damage caused by the earthquake was mainly due to the collapse of buildings. There are many types of seismic waves. Among them, the seismic surface wave has the characteristics of low frequency, high amplitude and slow attenuation, and the damage to buildings is the greatest. A large number of earthquake damages show that the peak frequency spectrum of seismic waves causing damage to surface buildings is around 2Hz. The resonance frequencies corresponding to most buildings are in the 10Hz range. Seismic metastructur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D31/08E02D5/22
CPCE02D31/08E02D5/22
Inventor 石南南亢志宽罗方慧王利辉赵卓
Owner BEIJING UNIV OF TECH
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